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A line with positive direction cosines passes through the point P(2, - 1,2) and makes equal angles with the coordinate axes.

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A line with positive direction cosines passes through the point P(2, - 1,2) and makes equal angles with the coordinate axes. The line meets the plane 2x + y + z = 9 at point Q. The length of the line segment PQ equals

(a) 1 (b) √2  (c) √3 (d) 2

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1 Answer

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Best answer

Correct option(c) √3

Explanation:

Q lies on the plane 2x + y + z = 9

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